I've a little bit of both! The Leatherman I have is a Wave, lovely bit of kit and so nicely made. It's been used for everything really from cutting cables to cutting back branches off the tree in the back garden - and the obligatory bit of flat pack furniture assembly..
My day to day work tool though is a simple, little old Victorinox Spartan. It's cheap to buy (or replace if it goes AWOL), small and lightweight for riding with and even though it only has a couple of blades and tools it always ends up being used several times a day
Several bikes, one supportive lady and still trying not to buy anything else!